Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 4 - Section 4.1 - Divisibility and Modular Arithmetic - Exercises - Page 244: 11

Answer

a) 80 hours after it reads 11:00, a 12-hour clock reads 7:00 b) 40 hours after it reads 12:00, it reads 4:00 c) 100 hours after it reads 6:00, it reads 10:00

Work Step by Step

a) 11+80=91=12(7)+7=7:00 b) 12+40=52=12(4)+4=4:00 c) 6+100=106=12(8)+10=10:00
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